How many of the world's capital cities have you been to?
 

i live in the UK

​​​​​So I have been to
London
And I have been passed Edinburgh and Cardiff on the way to other places.

44.

45 if you count both Pretoria and Cape Town as capitals of South Africa.

48 if you count Edinburgh, Belfast and Cardiff.

Four.

Washington, D.C. (US)
London (UK)
Paris (France)
Lisbon (Portugal)

Seventeen

London
Kuala Lumpur, Malaysia
Singapore, Singapore
Washington, D.C.
Victoria City, Hong Kong
Taipei
Beijing
Berlin
Rome
Vatican City, Vatican
Paris
Amsterdam
Prague
Budapest
Vienna
Bratislava
Lisbon

Of the countries I've been to, I've only been to slightly more than half of their capitals. What does that say?

For example, I have been to...
Canada, not Ottawa
Sweden, not Stockholm

Oh, them fightin' words? One China? How about Hong Kong SAR?

USA- Washington
UK- London
Ireland- Dublin
Japan- Tokyo
China- Beijing
Singapore- Singapore
Bahamas- Nassau

US - Washington DC
France - Paris
Germany - Berlin
China - Beijing
Japan - Tokyo
S. Korea - Seoul
Thailand - Bangkok
Malaysia - Kuala Lumpur
Singapore - Singapore
New Zealand - Wellington
UK - London
Ireland - Dublin
Italy - Rome
UAE - Abu Dhabi
Belgium - Brussels
Qatar - Doha
Vietnam - Hanoi
Spain - Madrid
India - Delhi
Czech Republic - Prague
Iceland - Reykjavik
Taiwan - Taipei
Austria - Vienna

23.

Capital cities
 

Anyone done over 190 capitals ?

Only 8 (10, if we're counting Northern Ireland & Scotland separately.)

Costa Rica - San Jose
Ecuador - Quito
France - Paris
Ireland - Dublin
Italy - Rome
Liechtenstein - Vaduz
UK - London (Are we also counting Belfast & Edinburgh?)
US - Washington, DC

My list of capital cities I've visited is:

Abu Dhabi, UAE
Amsterdam, Netherlands
Ankara, Turkey
Bangkok, Thailand
Berlin, Germany
Bogota, Colombia
Brussels, Belgium
Budapest, Hungary
Canberra, Australia
Copenhagen, Denmark
Dublin, Ireland
Guatemala City, Guatemala
Hanoi, Vietnam
Havana, Cuba
Helsinki, Finland
Hong Kong, Hong Kong
Kuala Lumpur, Malaysia
Lima, Peru
Lisbon, Portugal
Ljubljana, Slovenia
London, UK (Also Edinburgh, Scotland)
Luxembourg City, Luxembourg
Madrid, Spain
Managua, Nicaragua
Mexico City, Mexico
Muscat, Oman
New Delhi, India
Noumea, New Caledonia
Paris, France
Phnom Penh, Cambodia
Podgorica, Montenegro
Port Vila, Vanuatu
Prague, Czech Republic
Cape Town, South Africa (one of three capitals)
Quito, Ecuador
Reykjavik, Iceland
Rome, Italy
San Jose, Costa Rica
Sarajevo, Bosnia and Herzegovina
Seoul, South Korea
Singapore, Singapore
Stockholm, Sweden
Both Sucre and La Paz, Bolivia
Taipei, Taiwan
Tallin, Estonia
Tegucigalpa, Honduras
Tokyo, Japan
Valletta, Malta
Vatican City, Vatican City
Vienna, Austria
Vientiane, Laos
Warsaw, Poland
Washington DC, USA
Wellington, New Zealand

I've also spent 6 hours in Bandar Seri Begawan Airport, Brunei...but I can't count that.

Washington DC
Monaco
Paris
​​​​​​Dublin
Rome
Vatican City
Panama City
​​​​​​Lima
Santiago de Chile
​​​​​London
Edinburgh
​​​​Cairo
​​​​Athens
Muscat
Dubai
Nassau
Vienna
Bratislava
Budapest
Singapore
Berlin
Beijing
Seoul
Tokyo
Prague

25. Not bad, this was a fun list to assemble, thanks OP.

My list is:

London
Dublin
Paris
Brussels
Amsterdam
Luxembourg
Madrid
Berlin
Vienna
Berne
Vaduz
Rome

69, defined as staying at least one night (short connection in an airport hotel doesn't count).

I also like to count countries I have been to but not been to the capital:

Portugal (Porto)
Cambodia (Siem Reap)
Switzerland (Geneva, Zurich, Basel)
Tanzania (Zanzibar)
Myanmar (Yangon)
Turkey (Many but not Ankara)
New Zealand (Auckland)
Australia (Sydney)